// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_PUBLIC_BROWSER_MEDIA_CAPTURE_DEVICES_H_
#define CONTENT_PUBLIC_BROWSER_MEDIA_CAPTURE_DEVICES_H_

#include "content/public/common/media_stream_request.h"

namespace content {

// This is a singleton class, used to get Audio/Video devices, it must be
// called in UI thread.
class CONTENT_EXPORT MediaCaptureDevices {
public:
    // Get signleton instance of MediaCaptureDevices.
    static MediaCaptureDevices* GetInstance();

    // Return all Audio/Video devices.
    virtual const MediaStreamDevices& GetAudioCaptureDevices() = 0;
    virtual const MediaStreamDevices& GetVideoCaptureDevices() = 0;

private:
    // This interface should only be implemented inside content.
    friend class MediaCaptureDevicesImpl;
    MediaCaptureDevices() { }
    virtual ~MediaCaptureDevices() { }
};

} // namespace content

#endif // CONTENT_PUBLIC_BROWSER_MEDIA_CAPTURE_DEVICES_H_
